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Kilshaw, K.; Johnson, P.J.; Kitchener, A.C.; MacDonald, D.W. | |
Detecting the elusive Scottish wildcat _Felis silvestris silvestris_ using camera trapping | |
2015 Oryx (49): 207-215 | |
Population monitoring is important for conservation management but difficult to achieve for rare, cryptic species. Reliable information about the Critically Endangered Scottish wildcat _Felis silvestris silvestris_ is lacking because of difficulties in morphological and genetic identification, resulting from extensive hybridization with feral domestic cats _Felis catus_. We carried out camera-trap surveys in the Cairngorms National Park, UK, to examine the feasibility of camera trapping, combined with a pelage identification method, to monitor Scottish wildcats. Camera trapping detected individually identifiable wildcats. Of 13 individual wild-living cats, four scored as wildcats based on pelage characters and the rest were wildcat x domestic cat hybrids. Spatially explicit capture-recapture density estimation methods generated a density of wild-living cats (wildcats and hybrids) of 68.17 ñ SE 9.47 per 100 km2. The impact of reducing trapping-grid size, camera-trap numbers and survey length on density estimates was investigated using spatially explicit capture-recapture models. Our findings indicate camera trapping is more effective for monitoring wildcats than other methods currently used and capture success could be increased by using bait, placing camera stations < 1.5 km apart, increasing the number of camera stations, and surveying for 60-70 days. This study shows that camera trapping is effective for confirming the presence of the wildcat in potential target areas for conservation management. |
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